#include <stdio.h>
int fib(int a)
{
	if (a == 0) { return 0; }
	if (a == 1) { return 1; }
	return (fib(a-1) + fib(a-2));
}

int main(int argc, char * argv[])
{
	printf("fib(9) = %d\n", fib(9));
	return 0;
}
